Breidy, you didn't say what pressures you were running before. Because it was your first autocross, a lot of things could explain a six second drop in time other than tire pressures. We don't know what kind of surface you are on, either, but I suspect you could probably get away with adding 5 pounds more to the front, to about 45 lbs. I have tried it at 40 and 50, and think 45 is about right...but that is on concrete. I have autocrossed once or twice,too,  and my pressure choice was tested on a Contour!  Your friend may know more, but try it both ways.
Fastest Contour at SZ 2002 Auto-X. 10th in PAX out of 125. CEO of FOGEY(Fast Old Guys Emasculating Young-uns), Inc. Terry Haines, Chairman, Senior V.P.s: (alphabetical)JavaContour, Jet Mech, MFE, SeicoRacing, SVTSTS, Vern Kilburn. If your not a member, yet, wait a few years. I'm not just the CEO, but I'm a member, too. Working with the rank and file to get the job done right!
Historical:
63 TVR (1K in 74), 75 TR-7 (paid cash new), 79 RX-7 (zoom,zoom), 81 RX-7GSL (autobahn-driven),82 Mustang GT (autobahn-driven), 85 Mustang GT (SE Division F Stock Solo II Champ), 86 MR-2 (3rd SE Division D Stock), 88 Civic DX (had 1st born and still owned MR2) 92 Sentra SE-R (all go and no show), 98 EO SVT Contour (FTD SZ 2002). 02 Altima 3.5SE 5 spd!!!
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